深水区域砂卵石地质钢栈桥设计

以广珠铁路北江特大桥深水钢栈桥的成功修建经验为背景,介绍了该桥钢栈桥在砂卵石地质情况下,深水钢栈桥的桥墩、纵梁布置、栈桥桥面、深水加固等方面的设计及检算。工程实际应用证明,该设计经济合理性较好,可为同类施工环境下钢栈桥施工提供参考经验。

Steel Trestle Design in Sand Cobble Layer of Deep Water Area

Based on the successful experience of a deep-water steel trestle in Beijiang Extra-large Bridge of Guangzhou-Zhuhai Railway,this paper introduces the design and calculation of the deep-water steel trestle from the aspects of the piers,stringer layout,trestle deck and deep-water reinforcement,in the sand cobble layer.Application to the engineering practice has proved the economic rationality of this design,which can be reference to steel trestle construction under similar environments.